pimbley



(No Model.) 2 Sheets-Sheet 1.

J. PIMBLEY.

FEED WATER HEATER.

No. 589,364. Patented Aug. 31,1897.

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(No Model.) -2 Sheets Sheet 2.

J. PIMBLEY.

EEEE WATER HEATER.

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UNITED STATES PATENT OFFICE.

JOSEPH PIMBLEY, OF BOLTON, ENGLAND, ASSIGNOR OF ONE-HALF TO IVILLIAM ANDREW' ROTHWELL, OF W ALKDEN, ENGLAND.

FEED-WATER HEATER.

SPECIFICATION forming part of Letters Patent; No. 589,364, dated August 31, 1897.

Application filed March 4, 1896. Serial No. 581,827. (No model.) Patented in England March 2, 1894, No. 4,404; in France January 26,1895,No.244,645; in Belgium January 26, 1895, No. 113,844, and in Germany January 29, 1896, No. 83,700.

To all whom it may concern:

Be it known that I, JOSEPH PIMBLEY, en gineer, a subject of the Queen of Great Britain, and a resident of Bolton, in the countyof Lancaster, England, have invented certain new and useful Improvements in Fuel-Economizers or Feed-Water Heaters for Steam -Boilers and the Like, (for which I have obtained Letters Patent in Great Britain, No. 4,404, dated March 2, 1894; in Belgium, No. 113,844, dated January 26, 1895; in France, No. 244,645, dated January 26, 1895, and in Germany, No. 83,700, dated January 29, 1895,) of which the following is a specification.

My invention relates to an improved form of pipe and top box for fuel-economizers or feed-water heaters, whereby increased circulation of water is obtained, and also to an improved means for actuating the scrapers for cleaning the pipes.

In order that my invention may be fully understood and readily carried into effect, I will describe the accompanying two sheets of drawings, reference being had to the letters marked thereon.

Figure 1 is a side elevation, the left-hand portion of the drawing showing the pipes at the front of the flue and the right-hand portion the pipes at the back of the flue. Fig. 2 is a plan View, partly in section, on the line A B, Fig. 1. Fig. 3 is an end elevation, and Fig. 4 a transverse section, taken on the line C D, Fig. 2, of a fuel-economizer or feed-water heater made according to my invention.

In the drawings, a, represents that portion of the flue between the boiler-furnace and the chimney in which the economizer is placed;

1), the top plate which supports water-pipes.

c; d, standards for a shaft d, on which is mounted the center of a beam 6 and an arm 6, connected by a rod f to an eccentric-pin f, fitted on a disk g, keyed upon a shaft g and driven by a worm and worm-wheel from a rotating shaft h. To the top plate is cast or secured a number of special top boxes 2', which are made with chambers t" and partitions t and bonnets or caps 11 as shown in Fig. 4, while the economizer-pipes j, which are divided into two portions connected at the bottom, are bolted to and'suspended from the plate I). The interior shape of the pipes j,

-the beam 6 and thereby to the frames 7c and scrapers 70, thus dispensing with the necessity of a reversing motion. fer to make with bonnets 2' over the chambers 11, each bonnet fitting over one division of two of the adjoining pipes j.

For the purpose of cleaning the interior water-space of the pipes j I remove the caps or bonnets i from the top boxes and the caps j at the bottom of the pipes 7, when a brush can be passed through the tubes.

In operation the feed -water enters one range of pipes j through the pipe 0, from which it flows (see Fig. 4) down one branch of a pipe j to the bottom, then up the other branch into one of the chambers z", from which it passes into the top of a second pipe, down one of its branches, and up the other branch through a second chamber 2" in the top box, and so on.

By dividing the pipes j into branches or compartments,as described,I obtain a greatly-' increased heating-surface, and I obtain a greatly-increased circulation of Water through the pipes j by coupling up, say, two transverse rows of pipes ,j by water-pipes c in the following manner, (see Fig. 2:) \Vhere the feed-water enters the first pair of pipes j, through the pipe 0, and is caused to circulate by the partitions i in the top boxes through these two rows of pipes transversely across into a pipe 0' on the other side of the fine or The top box 2' I prechamber a, the pipe 0 conducts the water 5 from the two first rows of pipes j into the next pair of pipes j, from which it. travels back across these pipes into a pipe 0 and so backward and forward until it eventually is conducted away to the boiler through a pipe 0.

In place of coupling up the series of pipes j in pairs three or more pipes might be coupled lower ends of the said tubes having openings, and the box having openings over the junctures of the tubes, and covers for the lower tube-openings, and the upper box-openings whereby access into adjacent tube-legs may be had by removing the covers, substantially as described.

In witness whereof I have hereunto set my hand in presence of two witnesses.

JOSEPH PIMBLEY.

Vitnesses:

S. D. GILLETT, II. 13. HARLOW. 

